EP1243229A2 - Zahnimplantat - Google Patents
Zahnimplantat Download PDFInfo
- Publication number
- EP1243229A2 EP1243229A2 EP02004827A EP02004827A EP1243229A2 EP 1243229 A2 EP1243229 A2 EP 1243229A2 EP 02004827 A EP02004827 A EP 02004827A EP 02004827 A EP02004827 A EP 02004827A EP 1243229 A2 EP1243229 A2 EP 1243229A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- implant
- implant according
- axial section
- screw thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/863—Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
Definitions
- the invention relates to an implant for insertion into the jawbone of a patient, with a screw thread provided on its outer circumference and with a receptacle provided at its cranial end for fixing one Tooth structure.
- a basic structure of an implant currently consists in the fact that the screw thread is almost over the entire axial length range and that only on the cranial End of the implant is joined by a collar with an enlarged outer diameter, that in the uppermost area of the cortex and the transition area to the gums is arranged, the receptacle for the tooth structure carries and a continuous Allows transition to this tooth structure.
- the stability of such The implant is primarily created by the connection between screw thread and jawbone and secondarily by the implant growing together with the jawbone, obtained through the so-called osseointegration.
- Implants are usually screwed into the jawbone and only after one Provide healing time of about 3-4 months with the tooth structure, through which the The implant is only subjected to forces in the longitudinal and transverse directions. Even if So part of implant stability is obtained through osseointegration, which is not is directly influenced by the quality of the screw connection, the aim is nevertheless to optimize the primary stability and thereby the prerequisite for one to improve good osseointegration.
- the screw thread only over a first axial section of the implant on its apical Side extends that a second axial portion is provided on the cranial side is thread-free and to support the implant on the
- the cortex of the jawbone is used and one against the screw thread of the first axial section has an enlarged outer diameter, and that the second axial section has an axial length of at least one Has third of the total implant length, and that the screw thread of the first axial section a tapered thread base with in the direction of the apical end has a decreasing inner diameter.
- the described division of the implant according to the invention into a threaded area and in a thread-free area has the following effect:
- the implant is screwed into the cancellous bone while crossing the cortex and there anchored in particular to absorb longitudinal forces and torques.
- the thread-free section acts on the cortex, expanding it radially outwards and thus serves to absorb lateral forces.
- the unthreaded second axial section be at least as long as the cortex in the implant area is thick to the Cortex actually has a large, thread-free contact surface to be able to ask.
- the remaining area of the axial implant length, which is in the area the spongiosa extends should be provided with the screw thread his.
- the anchoring in the cancellous bone is advantageously by a special Improved thread shape with apically tapering thread base, through which the soft bone of the cancellous bone along the screw thread when inserting is gradually compressed.
- the threadless works in a similar way second axial section, the outer diameter of which Screw thread is enlarged and thereby for further compression of the Bone and thus provides a better hold.
- screw anchoring the implant in the cancellous bone useful if the screw thread is at least approximately the same Has outer diameter so that the thread depth between the outer diameter of the screw thread and the tapering thread root in the apical direction steadily increasing.
- the thread of the screw thread cuts here right from the start, the effective outer diameter in the entire screw thread range into the jawbone, displacing the area of the thread base but in the manner described above, starting from the apical End only gradually due to its constantly increasing inner diameter the jawbone and thus increases the compression and thus the Anchoring the jaw bone gently but steadily.
- the screw thread is advantageously designed as a trapezoidal thread, whereby the wide thread turn means greater displacement of the jawbone and receives a better hold of the screw thread in the jawbone, trapezoidal threads are actually primarily intended to Transfer longitudinal forces.
- the tapering thread base along an approximately truncated cone-shaped lateral surface, which has a taper angle ⁇ compared to the screw axis of about 5 °.
- Screw thread is double-start.
- This two-start screw thread can be used to achieve an enlarged displacement area, that based on the roughly constant outside diameter Thread depth of the second thread is made smaller than the thread depth of the first thread, creating the thread root of the second thread has a smaller axial extent and the axial length of the outer Threads can be enlarged.
- the thread depth of the second Thread turn is recommended about half the thread depth of the first thread turn in the respective axial section, as a result of which the taper angle ⁇ is also approximately frustoconical surface of the second thread about 2 ° to 5 °, but in particular with a cone angle that is half as large the screw axis of about 2.5 °.
- the two-start screw thread also has the advantage that the implant when screwing in two turns per operative connection with the cancellous bone. A few revolutions are enough (in one embodiment just a little over two) for a permanent, safe and ready-to-use advertising.
- the screw thread of the implant must not compress the bone to a great extent in order to prevent damage to the jaw bone due to crack formation or even by bursting open; Therefore, instead of a double thread with a constant outside diameter, it is recommended to use a simple screw thread, the outside diameter of which is the same as the thread base at a taper angle runs from 5 ° to the screw axis. To further reduce the compression properties, the screw thread has a comparatively large pitch, but nonetheless flat-inclined thread flanks.
- the second axial section which is thread-free and stretches in the area of the cortex, one is also recommended for this conical clear outer shape that tapers in the apical direction to also in this axial section a slowly increasing compression of the jawbone and thus to obtain an improved anchorage in the cortex.
- the second axial section is expediently of smooth-walled design. However, it is also possible to profile it with circumferential annular cross-sectional reductions execute that seen in axial section an arcuate Leave the outer shape between you. Of course there is also one Mixed form between smooth-walled and profiled design of the outer surface of the second axial section possible.
- the second axial section expediently consists of a tubular one Attachment that is designed separately from the first axial section, so that initially once the implant can be screwed into the jawbone and only then the second axial section on the screwed-in first axial Partial area is put on and fixed to the cortex.
- the first axial section has a cranial extension with reduced outer diameter compared to the screw thread, and if on the extension of the tubular, forming the second axial portion Attachment is attached.
- the determination of the one forming the second axial section tubular body on the extension can be screwed and in particular via fixing means for the tooth structure, especially if the Extension carries the holder for the tooth structure.
- the separate design of the second axial section as a tubular attachment and separate from the first axial section has the particular advantage that at a disease of the implant bed (so-called implantitis) this attachment without difficulty can be exchanged.
- implantitis a disease of the implant bed
- this shows in particular in Axial area of the screw thread on an internal thread, in which either during the 3-4-month period of osseointegration a healing screw or a Gingiva former and / or subsequent fastening screws for the tooth structure be anchored if there is no immediate treatment of the implant.
- the implant is particularly in the area of Screw thread can have a chemically roughened surface.
- parts of the second axial section with a smooth surface and without Be roughened.
- FIG. 1 shows a jawbone in a schematic vertical section, the structure of the jawbone KK is shown and the orientation of a Tooth Z and an inserted implant for the individual bone areas:
- the outermost layer is the gum A, which is on the crown K of the tooth Z is tight and the implant 1 during the healing phase shown in Figure 1 covered in the area of a healing screw 2.
- the next layer is the cortex B, which is used to hold the tooth or the implant, especially in the transverse direction provides.
- the cancellous bone C which is porous and forms the largest area of bone.
- tooth Z is included anchored to its tooth root W, from where the tooth nerve N extends to the nervus mandibularis NM of the jawbone KK extends.
- the implant 1 is similar to the tooth Z shown in the jawbone arranged and has a first axial corresponding to the tooth root Subarea 3, which carries a screw thread 4 on its outside and in Area of the cancellous bone is arranged and thereby the apical end of the implant forms.
- a second axial section 5 is thread-free and extends is at the level of the cortex and serves to insert the implant into Support the transverse direction on the cortex without longitudinally threading it Suspend power components.
- the present invention now proposes the field of To keep the cortex free of threads and instead the second one there axial portion to be provided with a larger outer diameter than that first axial section with screw thread, in order to create a uniform, gentle and extensive compression of the cortex in the peripheral region of the To receive the implant. At the same time, this ensures that the area of cancellous bone is limited Screw thread for the desired fixation of the implant in the longitudinal direction.
- the invention Implant a tapered thread base 6 (see Figure 2) with in Decreasing inside diameter towards the apical end, while the Outside diameter of the screw thread 4 remains essentially the same. hereby you also gently compress the cancellous bone in the area of the thread base, which is continuous when the implant is screwed in radial expansion generated.
- This first axial section 3 with screw thread 4 is shown in detail in FIG. 2, it can be seen that it has an extension 17 in the cranial axial direction carries, which serves to fix the second thread-free axial section 5, which is designed as a tubular body 8 and in various embodiments is shown in Figures 4 to 6.
- the screw thread 4 shown in Figure 2 consequently has a tapered Thread base 6, along an approximately frustoconical surface runs, the taper angle ⁇ is about 5 ° with respect to the screw axis 9. From Figure 2 is the approximately constant outer diameter 7 of the Recognize screw thread, so that the thread depth in the apical direction slowly increases. Finally, Figure 2 shows a prism-shaped end region and not rotationally symmetrical recess 18, which is transverse to the screw axis extends and an anti-twist device against unintentional loosening or unscrewing of the osseointegrated implant.
- FIG. 2a A detail I from FIG. 2 is shown in the detail in FIG. 2a: that the screw thread 4 is double-threaded with a first thread 4a and a second thread 4b, the thread depth of the first thread turn larger and in particular - based on the respective axial area - Double the thread depth of the second thread 4b is formed up to the thread base 6a.
- the screw thread 4 as Trapezoidal thread, so that there is a total of the external thread areas can enlarge in the axial direction, which leads to an enlargement of the Bone areas displaced by the implant and thus for a better hold of the implant in the cancellous bone.
- the first axial partial region 3 is approximately 60 ⁇ m long and the outer diameter 40 ⁇ m and the thread depth in the apical
- the initial area for the first thread is 5 ⁇ m and for the second thread 2.5 ⁇ m.
- the pitch of the two threads is 7 ⁇ m and the thread flanks have an inclination to the screw axis of approx. 75 °.
- the cranial extension 17 is tubular with a circular cross section and receives said tubular body 8, which is the second axial portion forms, which will be described in more detail later.
- the outer diameter 27 of the screw thread 24 is also designed to taper in the apical direction, so that overall the compression of the present screw thread is far less than in the first exemplary embodiment.
- this implant 21 is suitable for the high-density anterior tooth areas in the lower jaw, which could tear or be blown open if the compression is too great.
- extension 37, recess 38 and internal thread 30 correspond to corresponding components 17, 18 and 10 from Figure 2 in structure and function.
- the tubular attachment 8 shown in FIG. 4 has the extension 17 and 37 on a cylindrical inner bore 11, over which it is large and is free of play on the extension 17 in order to directly apply the effective forces or to be able to divert.
- the outside 12 of the attachment 8 is conical with an outer diameter increasing in the cranial axial direction. hereby When inserting this attachment, the adjacent cortex gradually becomes compressed and the corresponding surface pressure gradually increased until the The wedge-like attachment is anchored in the cortex, which is particularly important for lateral stability of the implant.
- the axial length of the tubular attachment 8 is particularly important: the thread of the screwed-in implant does not extend into the area of the Cortical, this second axial and unthreaded section should cover this Completely fill in the height section of the cortex and for this it is recommended that the second axial section has an axial length of at least one third of the total implant length.
- the present invention offers the advantage of an implant with optimized anchoring in the jawbone, including an implant for the first time Separation of functions is made available by the screw thread extends only to the area of cancellous bone and to accommodate Serves longitudinal forces, while the thread-free second axial section on the Height level of the cortex is arranged and transfers shear force components.
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Neurology (AREA)
- Dental Prosthetics (AREA)
Abstract
Description
- Figur 1
- das erfindungsgemäße Implantat eingesetzt in einen Kieferknochen in geschnittener Seitenansicht;
- Figur 2
- einen ersten, das Schraubgewinde aufweisenden axialen Teilbereich mit kranialem axialem Fortsatz im Längsschnitt;
- Figur 2a
- ein Detail des Schraubgewindes aus Figur 2;
- Figur 3
- eine alternative Ausführungsform eines Implantats in geschnittener Seitenansicht;
- Figuren 4-6
- unterschiedliche Ausführungsbeispiele für rohrförmige Aufsätze, wel-che den gewindefreien zweiten axialen Teilbereich des Implantates bilden.
Claims (17)
- Implantat zum Einschrauben in den Kieferknochen (KK) eines Patienten, mit einem an seinem äußeren Umfang vorgesehenen Schraubgewinde (4, 24) und mit einer an seinem kranialen Ende vorgesehenen Aufnahme zum Festlegen eines Aufbaus, dadurch gekennzeichnet, dass sich das Schraubgewinde (4, 24) nur über einen ersten axialen Teilbereich (3, 23) des Implantats (1, 21) auf dessen apikaler Seite erstreckt, dass auf der kranialen Seite ein zweiter axialer Teilbereich (5) vorgesehen ist, der gewindefrei ausgeführt ist und zur Abstützung des Implantats an der Kortikalis des Kieferknochens dient und hierzu einen gegenüber dem Schraubgewinde des ersten axialen Teilbereichs vergrößerten Außendurchmesser aufweist, und dass der zweite axiale Teilbereich eine axiale Länge von zumindest einem Drittel der Implantatgesamtlänge aufweist.
- Implantat nach Anspruch 1,
dadurch gekennzeichnet, dass das Schraubgewinde (4, 24) des ersten axialen Teilbereichs (3, 23) einen sich verjüngenden Gewindegrund (6, 26) mit in Richtung des apikalen Endes abnehmendem Innendurchmesser aufweist. - Implantat nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass das Schraubgewinde (4) einen zumindest in etwa gleichbleibenden Außendurchmesser (7) aufweist. - Implantat nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass das Schraubgewinde (4) zweigängig ausgebildet ist. - Implantat nach zumindest Anspruch 3 und Anspruch 5,
dadurch gekennzeichnet, dass ausgehend von dem in etwa gleichbleibenden Außendurchmesser (7) die Gewindetiefe des zweiten Gewindegangs (4b) kleiner ausgebildet ist als die Gewindetiefe des ersten Gewindegangs (4a). - Implantat nach Anspruch 6,
dadurch gekennzeichnet, dass der Gewindegrund (6a) des zweiten Gewindegangs entlang einer etwa kegelstumpfförmigen Mantelfläche verläuft mit einem Kegelneigungswinkel β gegenüber der Schraubachse von zwischen 2 und 5°. - Implantat nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass das Schraubgewinde (4) als Trapezgewinde ausgebildet ist. - Implantat nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass der zweite axiale Teilbereich (5) eine etwa konische lichte Außenform aufweist, die sich in apikaler Richtung verjüngt. - Implantat nach zumindest Anspruch 9,
dadurch gekennzeichnet, dass der zweite axiale Teilbereich (5) glattwandig ausgeführt ist. - Implantat nach Anspruch 9,
dadurch gekennzeichnet, dass der zweite axiale Teilbereich (5) profiliert ausgeführt ist. - Implantat nach zumindest Anspruch 11,
dadurch gekennzeichnet, dass die Profilierung aus umlaufenden ringförmigen Querschnittsreduzierungen unter Belassung von im Axialschnitt gesehenen kreisbogenförmigen Außenprofilierungen besteht. - Implantat nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass der zweite axiale Teilbereich (5) aus einem rohrförmigen Aufsatz (8) besteht. - Implantat nach zumindest Anspruch 13,
dadurch gekennzeichnet, dass der erste axiale Teilbereich (3, 23) einen kranialen Fortsatz (17, 37) mit gegenüber dem Schraubgewinde (4, 24) reduzierten Außendurchmesser aufweist, und dass auf den Fortsatz der den zweiten axialen Teilbereich (5) bildende rohrförmige Aufsatz (8) aufgesetzt ist. - Implantat nach Anspruch 14,
dadurch gekennzeichnet, dass der Fortsatz (17, 37) die Aufnahme für den Zahnaufbau trägt. - Implantat nach Anspruch 14,
dadurch gekennzeichnet, dass das Festlegen des den zweiten axialen Teilbereich (5) rohrförmigen Aufsatzes (8) auf dem Fortsatz (17) über Schraubmittel und insbesondere über Festlegungsmittel für den Zahnaufbau erfolgt. - Implantat nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass der erste axiale Teilbereich (3, 23) an seinem apikalen Ende eine Verdrehsicherung in Form einer nicht rotationssymmetrischen Aussparung (18, 38) aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10114627 | 2001-03-23 | ||
DE2001114627 DE10114627A1 (de) | 2001-03-23 | 2001-03-23 | Implantat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1243229A2 true EP1243229A2 (de) | 2002-09-25 |
EP1243229A3 EP1243229A3 (de) | 2003-05-21 |
Family
ID=7678956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02004827A Withdrawn EP1243229A3 (de) | 2001-03-23 | 2002-03-02 | Zahnimplantat |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1243229A3 (de) |
DE (1) | DE10114627A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004012622A1 (de) * | 2002-07-26 | 2004-02-12 | Star-Group-International | Dentalimplantat mit verankerungskopf und schraubkörper |
EP2315554A1 (de) * | 2008-08-26 | 2011-05-04 | Zest IP Holdings, LLC | Zahnärztliche ankervorrichtung und entsprechendes verfahren |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4103422A (en) * | 1975-03-07 | 1978-08-01 | Oratronics, Inc. | Threaded self-tapping endodontic stabilizer |
FR2596273A1 (fr) * | 1986-04-01 | 1987-10-02 | Scortecci Gerard | Implant dentaire pour la fixation de protheses dentaires fixes ou amovibles |
DE3800368A1 (de) * | 1987-01-08 | 1988-07-21 | Core Vent Corp | Implantat, insbesondere fuer zahnprothesen |
EP0313222A2 (de) * | 1987-09-24 | 1989-04-26 | Steven Gorgas Detsch | System zur Befestigung von Zahnersatz auf Implantat |
US4863383A (en) * | 1987-03-17 | 1989-09-05 | Grafelmann Hans L | self-taping screw-in bone implant for dental purposes |
CH684384A5 (de) * | 1989-09-08 | 1994-09-15 | Straumann Inst Ag | Implantat zur Befestigung eines künstlichen Zahnersatzes an einem Kieferknochen. |
US5368483A (en) * | 1993-06-14 | 1994-11-29 | Institut Straumann Ag | Device-for fixing a dental prosthesis to a jaw bone |
US5527183A (en) * | 1993-08-18 | 1996-06-18 | Collaborative Enterprises, Inc. | Endosseous implant system |
US5593410A (en) * | 1989-10-26 | 1997-01-14 | Vrespa; Giuseppe | Screw device for fixing prostheses to bones |
EP1057456A1 (de) * | 1994-08-22 | 2000-12-06 | Robert A. Dr. Bressman | Zahnärztliche Restaurationsstruktur |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE457769B (sv) * | 1987-06-12 | 1989-01-30 | Nobelpharma Ab | Distansorgan foer tandimplantat |
SE468500B (sv) * | 1990-01-18 | 1993-02-01 | Nobelpharma Ab | Laekhaetta foer ett dentalt implantat |
US5108288A (en) * | 1991-06-14 | 1992-04-28 | Perry William L | Non-rotational prosthodontic restoration |
DE4238383A1 (de) * | 1992-11-13 | 1994-07-14 | Stephan Dipl Ing Fath | Selbstschneidendes Zylinderschraubimplantat mit mehrgängigem Gewinde |
DE4415076A1 (de) * | 1994-04-29 | 1995-11-02 | Roland Dr Dr Streckbein | Kieferimplantat |
DE29705059U1 (de) * | 1997-03-20 | 1998-05-14 | Unger, Heinz-Dieter, Dr.med.dent., 49080 Osnabrück | Implantatkörper und Rotationskörper |
-
2001
- 2001-03-23 DE DE2001114627 patent/DE10114627A1/de not_active Withdrawn
-
2002
- 2002-03-02 EP EP02004827A patent/EP1243229A3/de not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4103422A (en) * | 1975-03-07 | 1978-08-01 | Oratronics, Inc. | Threaded self-tapping endodontic stabilizer |
FR2596273A1 (fr) * | 1986-04-01 | 1987-10-02 | Scortecci Gerard | Implant dentaire pour la fixation de protheses dentaires fixes ou amovibles |
DE3800368A1 (de) * | 1987-01-08 | 1988-07-21 | Core Vent Corp | Implantat, insbesondere fuer zahnprothesen |
US4863383A (en) * | 1987-03-17 | 1989-09-05 | Grafelmann Hans L | self-taping screw-in bone implant for dental purposes |
EP0313222A2 (de) * | 1987-09-24 | 1989-04-26 | Steven Gorgas Detsch | System zur Befestigung von Zahnersatz auf Implantat |
CH684384A5 (de) * | 1989-09-08 | 1994-09-15 | Straumann Inst Ag | Implantat zur Befestigung eines künstlichen Zahnersatzes an einem Kieferknochen. |
US5593410A (en) * | 1989-10-26 | 1997-01-14 | Vrespa; Giuseppe | Screw device for fixing prostheses to bones |
US5368483A (en) * | 1993-06-14 | 1994-11-29 | Institut Straumann Ag | Device-for fixing a dental prosthesis to a jaw bone |
US5527183A (en) * | 1993-08-18 | 1996-06-18 | Collaborative Enterprises, Inc. | Endosseous implant system |
EP1057456A1 (de) * | 1994-08-22 | 2000-12-06 | Robert A. Dr. Bressman | Zahnärztliche Restaurationsstruktur |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004012622A1 (de) * | 2002-07-26 | 2004-02-12 | Star-Group-International | Dentalimplantat mit verankerungskopf und schraubkörper |
EP2315554A1 (de) * | 2008-08-26 | 2011-05-04 | Zest IP Holdings, LLC | Zahnärztliche ankervorrichtung und entsprechendes verfahren |
EP2315554A4 (de) * | 2008-08-26 | 2012-11-14 | Zest Ip Holdings Llc | Zahnärztliche ankervorrichtung und entsprechendes verfahren |
Also Published As
Publication number | Publication date |
---|---|
DE10114627A1 (de) | 2002-10-02 |
EP1243229A3 (de) | 2003-05-21 |
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